package com.sky.handler;

import com.sky.constant.MessageConstant;
import com.sky.exception.BaseException;
import com.sky.result.Result;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理器，处理项目中抛出的业务异常
 */
@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {

    /**
     * 捕获业务异常
     * @param ex
     * @return
     */
    @ExceptionHandler
    public Result exceptionHandler(BaseException ex){
        log.error("异常信息：{}", ex.getMessage());
        return Result.error(ex.getMessage());
    }
    @ExceptionHandler
    public Result exceptionHandler (SQLIntegrityConstraintViolationException ex) {
            String message = ex.getMessage();
            if (message.contains("Duplicate entry")) { // 如果是sql异常并且是重复的提示 则证明 该用户已存在
                String[] strList = message.split(" ");
                String username = strList[2];
                return Result.error(username + MessageConstant.ALREADY_EXISTS);
            } else {
                return Result.error(MessageConstant.UNKNOWN_ERROR); // 提示未知错误
            }
    }
}
